Cita APA

Dianna, B. (2009). Winning sales letters. Prentice Hall.

Chicago Edition Citation

Dianna, Booher. Winning Sales Letters. New Delhi: Prentice Hall, 2009.

Cita MLA

Dianna, Booher. Winning Sales Letters. Prentice Hall, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.